| 街谷环流和热力结构的数值模拟 |
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| 引用本文： | 桑建国,王保民,佟华,刘辉志.街谷环流和热力结构的数值模拟[J].应用气象学报,2002,13(Z1):69-81. |
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| 作者姓名： | 桑建国 王保民 佟华 刘辉志 |
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| 作者单位： | 1. 北京大学物理学院大气科学系,北京,100871
2. 中国科学院大气物理研究所,LAPC,北京,100029 |
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| 基金项目： | 本文由《国家重点基础研究发展规划》项目:首都北京及周边地区大气、水、土环境污染机理与调控原理(G1999045700)和中国科学院KZCX2-204计划共同资助. |
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| 摘 要： | 文章介绍一种用于模拟街谷流场和温度场的动力学模式和热力学模式.应用动力模式模拟了方柱体塔楼和圆柱体塔楼形成的流场,应用动力和热力模式模拟了街谷中流场和温度场的日变化过程.计算实例表明,上述模式可用于城市街谷和建筑群风环境和热力环境研究以及街谷中空气污染物传输和扩散的计算.
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| 关 键 词： | 街谷 风环境 热力环境 动力学子模式 热力学子模式 |
| 修稿时间： | 2001年6月24日 |
NUMERICAL SIMULATION OF THE FLOW FIELD AND THERMAL STRUCTURE OVER A STREET CANYON |
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| Sang Jianguo,Liu Huizhi,Wang Baomin,Tong Hua.NUMERICAL SIMULATION OF THE FLOW FIELD AND THERMAL STRUCTURE OVER A STREET CANYON[J].Quarterly Journal of Applied Meteorology,2002,13(Z1):69-81. |
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| Authors: | Sang Jianguo Liu Huizhi Wang Baomin Tong Hua |
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| Institution: | Sang Jianguo 1) Liu Huizhi 2) Wang Baomin 1) Tong Hua 1) 1) |
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| Abstract: | A dynamic submodel and a thermodynamic submodel are developed to simulate the flow fields and thermal structure of a street canyon. The bluff body flow fields for a prism tower building and a column building, respectively, in the neutral flow are calculated. The diurnal variation of wind and temperature fields over a three dimensional street canyon is simulated. These case studies indicate that the model system above can be used for investigating the wind and thermal environment and the processes of air pollution transportation and diffusion over a street canyon or a group of buildings. |
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| Keywords: | Street canyon Wind environment Thermal environment Dynamic submodel Thermodynamic submodel |
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